| CAH220 is an intermediate-maturing maize hybrid bred for the tropical lowlands of South Asia. This high-yielding, yellow-kernel maize hybrid performs well under drought and heat stress conditions, and has tolerance to TLB and ear rots. |
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General Information |
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Target Region |
South Asia |
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Adaptation/Agroecological zone |
Tropical Lowland |
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Type of product |
Single-cross hybrid |
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Year first announced |
2024 |
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Kernel Characteristics |
| Grain Yield |
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Kernel color |
Yellow |
| Grain yield (opt.) |
7.78 t/ha |
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Kernel texture |
Semi-Dent |
| Grain yield under on-farm conditions |
5.11 ± 2.55 t/ha |
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| Grain yield under Heat Stress + Mod. VPD |
5.68 t/ha |
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Biotic Stress Performance |
| Grain yield under Heat Stress + Low VPD |
8.37 t/ha |
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Fusarium stalk rot (FSR) (AI) (1-9)* |
7.4 |
| Grain yield random stress (RS) |
5.12 t/ha |
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Turcicum leaf blight (TLB) (AI) (1-9)* |
4.0 |
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Macrophomina Stalk Rot (MSR) (AI) (1-9)* |
7.7 |
| Agronomic Characteristics |
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Ear rots (1-9)* |
3.5 |
| Maturity group |
Medium |
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*Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. |
| 50% anthesis |
56 days |
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| 857 GDD |
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| Anthesis-silking interval |
2.5 days |
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Seed Production Characteristics |
| Ear height |
106 cm |
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Female parent yield |
3.63 t/ha |
| Plant height |
218 cm |
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Male parent yield |
4.10 t/ha |
| Ears per plant |
0.88 |
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Nicking |
-0.9 days |
| Ear aspect (1-5)* |
2.0 |
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| Plant aspect (1-5)* |
1.5 |
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Comments |
| *Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics |
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Product information is based on data from the CIMMYT South Asia 2021/22 Stage 4 and 2022/23 Stage 5 Trials (see "Further Links" section). Actual performance will vary depending on a number of agronomic and environmental factors.
Abbreviations:
AI = artificial infestation/inoculation
FSR = Fusarium stalk rot
GDD = growing degree-days (°C)
MSR = Macrophomina Stalk Rot
Opt = optimal environment
RS = random stress trial
TLB = Turcicum Leaf Blight
VPD = vapor-pressure deficit |
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| Further Links |
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Full Product Announcement
(including trial results summary and site information) |
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